ZPLConvert provides a simple tool for converting images to ZPL compatible strings.
pip install zplconvert
ZPLConvert needs one of the following:
Included is a simple main program that can be used from the command line to convert images.
zplconvert zebra_logo.png
will read zebra_logo.png, convert it to black and white, then to compressed ZPL Ascii and print the result to stdout.
If you want more control, you can use the following flags:
| Flag | Description |
|---|---|
--no-compress |
Do not compress the result image (useful for debugging). |
--position x,y |
Add a positional header to the output. |
--threshold value |
Set black pixel threshold (0-255, default 128). |
--dither |
Dither the result instead of hard limit for black pixels. |
--label |
Add header and footer needed for a complete ZPL label. This allows the result to be sent directly to a printer (e.g. with curl). |
--output filename |
Write result to file instead of stdout. |
The same converter can be used directly from Python as well
from zplconvert import ZPLConvert
convert = ZPLConvert("zebra_logo.png")
convert.set_compress_hex(True)
result = convert.convert()See the code for other options that can be set on the converter.
Also included is a helper utility for converting ZPL images back to PNG (or any other image format supported by PIL).
zplparse --output logo.png zebra_logo.grf
Bug reports and pull requests are welcome on GitHub at https://github.com/Karimerto/zplconvert.
This source is released under the standard MIT License
The Zebra Logo was copied from Zebra Design.